package com.dyh.controller;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HomeController {

    @RequestMapping({"/","/index"})
    public String index(){

        return "index";
    }

    @RequestMapping("/toLogin")
    String toLogin(){
        return "login";
    }

    @RequestMapping("/login")
    String login(String username, String password, Model model){

        //获取当前的用户
        Subject subject= SecurityUtils.getSubject();
        //封装用户的登录数据
        UsernamePasswordToken token = new UsernamePasswordToken(username, password);

        try{
            subject.login(token);//执行登录的方法, 如果没有异常说明就ok了

            return "redirect:/toAdmin";
        }catch (UnknownAccountException e){//用户名不存在
            model.addAttribute("msg","用户名错误");
            return "login";
        }catch (IncorrectCredentialsException e){//密码不存在
            model.addAttribute("msg","密码错误");
            return "login";
        }

    }

    @RequestMapping("/toAdmin")
    String toAdmin(){
        return "redirect:admin";
    }

}
